netdev - Re: [PATCH net-next v6 3/9] kbuild: document RPS/XPS network Kconfig options

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Message-ID: <1321499952.3274.11.camel@edumazet-laptop>
Date:	Thu, 17 Nov 2011 04:19:12 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	bhutchings@...arflare.com, david.decotigny@...gle.com,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	ian.campbell@...rix.com, jeffrey.t.kirsher@...el.com,
	jpirko@...hat.com, joe@...ches.com, szymon@...c.net.pl,
	rick.jones2@...com, AAbdulla@...dia.com, therbert@...gle.com
Subject: Re: [PATCH net-next v6 3/9] kbuild: document RPS/XPS network
 Kconfig options

Le mercredi 16 novembre 2011 à 21:59 -0500, David Miller a écrit :

> They shouldn't be, they are internal dependency descriptions and should
> be invisible to the user.

Unless someone has evidence of a performance cost :)

The rps_lock() adds an atomic operation in netif_rx(), even if RPS is
not really used/configured...



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